Home / 499,042.08-688,681.44-272,691.36

Finding the Fourth Proportional to 499,042.08, 688,681.44 and 272,691.36

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Solution

The fourth proportional to 499,042.08, 688,681.44 and 272,691.36 is: 376,315.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    499,042.08 : 688,681.44 = 272,691.36 : x
  2. Step 2: Convert to fraction form
    499,042.08/688,681.44 = 272,691.36/x
  3. Step 3: Cross multiply
    499,042.08x = 688,681.44 × 272,691.36
  4. Step 4: Simplify right side
    499,042.08x = 187,797,478,480.36
  5. Step 5: Solve for x
    x = 187,797,478,480.36/499,042.08
  6. Step 6: Final answer
    x = 376,315.92

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.